Improvement in lamp-chimneys



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O. E. KELLOGG. Lamp-Chimney.

Patented Jilly 8,187-9u UNITED STATES PATENT OFFICE.

CHARLES E. KELLOGG, OF ELMWOOD, CONNECTICUT.

IMPROVEMENT lN LAM P-CHIMNEYS.

Specification forming part of Letters Patent No. 217,290, dated July 8, 1879; application filed March 7, 1879.

To all whom it'mag concern:

Be it known that 1, CHARLES E. KELLOGG, ofElmwood, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvementspertaining to LampChimneys, of which the following is a specification, reference being had to the accompanying drawings, where Figure 1 is a side view of a lamp-chimney constructed in accordance with my invention.

' foundation-frame of my chimney. The letters d (1 denote two similar removable frames, designed to have the mica plates 6 e fitted to them, the side edges being furnished with the flanges e c for that purpose, and then secured to the foundation-frame in a manner which will permit their subsequent removal.

The method which I prefer is shown in the accompanying drawings.

The base-ring c is provided with the return flange-ring j, which holds theremovable frames at cl to the foundation-frame at the foot. The letter 9 denotes a removable ring, which can he slipped over the top of the removable frames, to hold them to the foundation-frame at the upper end.

In assembling the parts the mica is first fitted to the removable frames, which are then held to the foundation-frame and slipped at the foot inside the ring f. The ring 9 is then slipped over the top of the removable frames.

It is obvious that the ring f at the foot can readily be made and used as a removable ring, and there are other and equivalent means for holding the removable frames to the foundation-frame. It is feasible to hold the removable frames to the foundation-frame by small malleable clips passing through the removable frames and the foundation-frame. Small de vices in the nature of latches may be used. The rings may bein parts, hinged to the-foundation-frame at one end, and fastened by clip or latch at the other end. Nor is the exact form and shape of the foundation-frame or of the removable frame or frames essential. These may be varied without departing from the main idea or principle of the invention.

0n the other hand my invention does not consist in, and does not include, astructure where the mica plates are bound with metal at the edges and then slipped into grooves in the posts of the main frame.

It is an essential feature and characteristic of my invention that theremovable frames are laid upon the exterior of the foundationframc, and then secured thereto by rings or clips or the like, so that the mica plates are between the removable and the foundation described.

CHAS. E. KELLOGG. Witnesses:

W. E. SIMONDS, R. F. GAYLORD. 

